College Algebra
posted by Dalton .
What do I do to graph:
(x2)^2+(y4)^2=9

The standard form equation of a circle :
( x  h ) ^ 2 + ( y  k ) ^ 2 = r ^ 2
h are the x coordinates of the center of the circle
k are the y coordinates of the center of the circle
r = radius
In this case:
x coordinate of the center = 2
y coordinate of the center = 4
r = sqrt ( 9 ) = 3
Draw coordinate system , put driver in point ( x = 2 , y = 4 ) and drive circle with radius = 3
y coordinate 
they are right